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Evi Aprianti
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International Association of Lowland Technology In Collaboration with Hasanuddin University and Saga University Address Faculty of Engineering, Center of Technology Building, 1st Floor Jalan Poros Malino km. 6, Bontomarannu, Gowa Indonesia Postal Code: 91711
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Lowland Technology International
Published by International Association of Lowland Technology
ISSN : 13449656     EISSN : 21878870     DOI : https://doi.org/10.0001/ialt_lti
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
The Lowland Technology International Journal presents activity and research developments in Geotechnical Engineering, Water Resources Engineering, Structural Engineering, Transportation Engineering, Urban Planning, Coastal Engineering, Disaster Prevention and Mitigation Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 4 Documents
 1 
Search results for , issue "Vol 2 No 1, June (2000)" : 4 Documents clear
GEOTECHNICAL ASPECTS OF THE DESIGN AND BEHAVIOUR OF THE HIGHWAY BRIDGE OVER DRADER RIVER IN MAROCCO J. P. Magnan; H. Ejjaaouani; M. Virollet; A. Tahour
Lowland Technology International Vol 2 No 1, June (2000)
Publisher : International Association of Lowland Technology

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Abstract

The motorway bridge on the Drader River suffered from severe floods, which occurred during its construction in 1995-1996. At this site, 8 m thick compressible soft clays layers were found during the site investigations and piled abutments were designed. During the flood, due to erosion of the riverbed under the bridge, the piled abutments were displaced and came in contact with the bridge deck. The access embankments were taken away and a new project was established for the abutments and embankments. L-shaped retaining walls prevent any contact between the fill and the abutments and hollow concrete tubes were placed in the fill in order to reduce the load applied to the ground surface.
HYDROCHEMISTRY OF LOWLANDS WATER OF SOUTHWEST BANGLADESH Muhammad Qumrul Hassan
Lowland Technology International Vol 2 No 1, June (2000)
Publisher : International Association of Lowland Technology

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Abstract

The paper presents the physical properties and chemical constituents of surface and groundwater of southwest lowland area. Annual seasonal and tidal flooding are the common phenomenon in lowland of Bangladesh. Monson climatic condition is the main responsible for the flooding both from onshore to offshore areas. These physical processes, the regional hydraulic head declination during the dry period (November-April) and some man-made activities have caused the present deterioration of water quality from the acceptable limit for conjunctive use of the area. Physico-chemical analyses of water from river and groundwater have revealed that EC, TDS, TH, Na+, CT are higher concentration levels then the standard limit. In thois context, many studies on water quality have revealed that the surface water of southwestern lowland is of primary salinity type, which can be found in the every dry period. Observation shows that the salinity level normally decreases when the high stream flow discharges from the upstream rivers during the very wet periods.
INTERACTIONS BETWEEN COLUMN INCLUSION AND SURROUNDING SOIL IN COMPOSITE GROUND Gung Xin Li; Wen Feng Huang; Keizo Ugai
Lowland Technology International Vol 2 No 1, June (2000)
Publisher : International Association of Lowland Technology

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Abstract

The interaction between column inclusions and surrounding soil in composite ground is an important factor that the bearing capacity and settlement behaviours of the composite ground. In this paper, interaction between column inclusion (granular column or compressible pile) and surrounding soil are systematically studied by means of laboratory and field tests and tehoritical analyses. This paper presents that interaction behaviours of composite ground woith granular columns and that with compressible piles are quite different: in the former case, the interaction in mainly laterally, while in the later case, the interaction is necessary to insure enough lateral restraint for the column, especially at the upper part of the column; for the composite ground with compressible piles, a sand mat with certain thickness on the top of the pile is important to reduce the stress concentration on the columninclusion and useful to make compatible working between the column inclusion and foundation soil.
ESTIMATING WATER QUALITY OF THE ARIAKE SEA IN JAPAN USING LANDSAT-TM DATA - Evaluation of SDD and SST- Thian Yew Gan; Koichiro Ohgushi; Hiroyuki Araki
Lowland Technology International Vol 2 No 1, June (2000)
Publisher : International Association of Lowland Technology

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Abstract

Using Lowtran 7's estimated Rayleigh scattered and aerosol scattered radiance, the radiance reflected at the sea surface (Lw(λ)) is derived from the measured radiance of Landsat-TM images taken over teh Ariake Sea. Then the Lw(λ) averaged from 4 x 4 windows of pixels contered at 33 sampling sites was regressed againts the observed Secchi disk depth (SDD) using linear regression algorithms. Result show that use of multi-date visible channels of Landsat-TM as the calibration data predicts more accurate and dependable SDD at the validation stage than use of single-date calibration data of Landsat-TM. This study confirms the feasibility of retrieving SDD (or turbidity/ suspended-sediments) from Landsat-TM data. Limited experiments in the modeling sea surface temperature (SST) show the potential of predicting SST from the thermal channel (6) og Landsate-TM data using a simple liniear regression.

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